Improvement in racks for wagon-brakes



W. LYLEWIS.

` i Rack for Wagon Brake.

No. 07,930. Patented Oct. 4, 1870.

To all whom 'it/may concern @cited gisten-' WILLIAIIy J. LEWIS, or PITTSBURQ. PIrIvIvsILvANIA.4

Letters Patent No. 107,930, datedOotober 4, 1870.

IMPRovemENT m aAcKs Fon wAGcN-BRAKES.-

The Schedule referred tc irrthese Letters Patent and making part of the same'.

Be it known that I, WILLIAM J. LEWIS, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented anew and useful Improve-l ment in Racks for Wagon-Brakes; and I do hereby declarethe following to be a full, clear, and exact description thereof, reference being had to the accompanying drawing making a part ot' this specification, in which-4' l v Figure 1V isa perspective view of the rolled blank or bar from which my improved rack is made, and

Figure-2 is av similar view of the finished rack.

Ratchet-racks for Wagon-brakes have heretofore commonly been made by forging from flat bar-iron of uniform thickness. c I i By my improvement, I produce a rack of animproved shape, from a bar ot' atriron, having a bead or rib running along the full length of its'back edge, and thinned down from the base ot the rib to its outer edge.

To enable others skilled in the art to `make my irriprovement, I will describe its construction.

The bar ct is rolled in grooved cylindrical rolls, to the form shown, .with a rib, b, running along its bac edge, upon its upperfaoe.

In `the leap or thinned outer edge is cut a series of ratchet-teeth, c, forv engaging the lever of the brake. This form of rack is I nuch stronger and light-er than 4those heretofore in'use, and, as I roll them, I make a great saving intime and labor.

l What I claim.` as my invention, and desire to secure by Letters Patent, is

. A rolledfrack for wagon-brake, made substantially as described.

' In testimony whereof, I, the saidv WILLIAM J.

LEWIS have hereunto set my' hand.

WM.- J LEWIS.

Witnesses J oHN GLENN., Trios. B. Kenn. 

